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Only apply power after all connections have been
made and inspected.
• Connect shielded cable to the T-strip as shown:
Terminal Descriptions
• aLSN1 & bLSN1: coming from the preceding LSN element.
Use shielded cable for bus connections.
• aLSN2 & bLSN2: going to the next LSN element. Use
shielded cable for bus connections.
• 5&6: Spare terminals.
• 7: Connection for ground wire from shielded cable.
NOTE: Do not coil excess wire inside the enclosure and seal
the wire entrance with the plug provided.
3.0 Adjust Sensitivity
• Set the sensitivity to one of the following settings using the
software:
Standard: The recommended setting for maximum false
alarm immunity. Tolerates environmental extremes on this
setting. Standard Sensitivity is not recommended for Long
Range patterns. The detector is shipped in Standard
Sensitivity mode.
Intermediate: The recommended setting for any location
where an intruder is expected to cover only a small portion of
the protected area or when quick catch performance is
desired. Tolerates normal environments on this setting. This
setting will improve intruder catch performance.
4.0 Setup and Walk Testing
• Replace the cover and insert the tamper screw if desired.
• Apply power to the unit.
• Wait for approximately two minutes with no motion in the
coverage area, then begin walk testing.
NOTE: Walk test across the
pattern.
• The edge of the coverage is determined by activation of the
LED.
• Walk test the unit from both directions to determine the
boundaries.
• If the desired range cannot be achieved, try angling the mirror
up or down to assure the coverage pattern is not aimed too
high or too low.
• If required, install the security seal (P/N 3.102.389.687)
across the gap between the base and cover just beside the
Cover Locking Screw.
Page 4 P/N: 47885F 3/04
5.0 Other Information
Maintenance: At least once a year, the range and coverage
should be checked in accordance with the walk test section.
To ensure continual daily operation, the end user should be
instructed to daily walk through the outer edge of the
coverage area and observe the LED operation (if used.) This
assures an alarm output prior to arming.
Masking: Per VdS requirements, masking of lens sections is
to be avoided. The masking materials impair the reported de-
tector performance. Furthermore, any pollution or staining of
the mirror can degrade detector performance, and is to be
avoided.
6.0 Coverage Patterns
NOTE: All dimensions in meters.
Wide Angle Coverage
Top view
11
0
B
5.5
5.5
A
D
J
C
K
O
0
L
E
P
Q
M
G
N
F
H
5.5
5.5
I
0
11
Side view
11
0
3
2
0
0
0
11
O-
Q
J-N
A -I
Mirror adjusted to -6°
Curtain Coverage
Top view
0
1.5
0
1.5
0
Side view
0
2
0
0
E
D
C
B
Mirror adjusted to -3°
O P Q
J K L M N
A B C D E F G H I
Mirror Segment to
Pattern Reference
C D E
21
1.5
0
B
1.5
21
21
A
3
0
21
Mirror Segment to
A
Pattern Reference
DS935 LSN Installation Instructions
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